David lippt



D. LIPPY.

PUMP.

' (No Model.)

Patented 1360.29, 1896.

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muon.

DAVID LIPPY, OF MANSFIELD, OIIIO.

PUNIP.

SPECIFICATION formingpart of Letters Patent No. 574,252, dated December29, 1896.

Application filed December 28, 1895. Serial No, 573,648. (No model.)

To all whom t may con/cern:

Be it known that I, vDAVID LIPPY, a citizen of the United States,residing at Mansfield, in the county of Richland and State of Ohio, haveinvented certain new and useful Improvements in Iumps; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the annexe-d drawings, making a part ofthis specification, 'and to the letters of reference marked thereon.

The present invention has for its object to improve in the severaldetails of construction that class of submerged pumps provided with ahollow plunger-rod and plunger; and it consists in a pump constructedsubstantially as shown in the drawings and hereinafter described andclaimed.

Figure l of the drawings represents a sectional elevation of a pumpembodying myinvention; Fig. 2, a horizontal section taken on line fr ofFig. l.

In the accompanying drawings, A represents the pump-cylinder, and B Ctwo contracted ducts which are disposed diametrically opposite eachother, as shown in Fig. 2 of the drawings. The ducts B O are cast withand form a part of the cylinder A, or the ducts are connected to thecylinder in any other suitable manner as found best adapted to thepurpose, this being left discretionary with the manufacturer, or, ifpreferred, the ducts may be formed of tubing secured to the cylinder atthe top and bottom thereof. rlhese ducts communicate with the cylinderat the top and bottom, as shown in Fig. 1 of the drawings, suitablecoupling-heads D E having exterior screw-threads to engage thescrew-threads on the flanges ce at the ends of the ducts D O and thescrew-threads at the ends of the cylinder A.

The coupling-head E at the lower end of the pump-cylinder A forms a seatfor a suitable valve F, which valve controls the central opening Z) forthe passage ofthe water into the cylinder.

The ducts B C communicate with the central opening'b and with theinterior of the pumpcylinder through the holes c, which holes extendthrough a groove cl around the exterior of the coupling-head E, asshown.

The coupling-head D comprises the two disks ef, joined by a centraltubular neck g, said disks having exterior screw-threads with which thescrew-threads upon the upper ends of the du cts and pump-cylinderengage. The disk e has an upwardly-extending iiange to form a cup-shapedreceptaclej for a suitable packing h and a screw-threaded washer t' tohold the packing in place. The cup-shaped receptacle has interiorscrew-threads withy which engage the screw-threads of the washer and thescrew-threaded end of thedischarge cylinder or pipe G. The disk f hasopenings 7o for the passage of the water, said openings being controlledby a suitable valve II upon the under side of the disk.

The tubular or hollow plunger-rod I has openings Z through its side forthe passage of the water into the cylinder or pipe G, and the lower endof the rod has connected to it a water-chamber K by means of thescrew-coupling m. This water-chamber K has openings n at its top for thepassage of the water from the pump-cylinder into said chamber, saidOpenings being controlled by a suitable valve L.

'Io the under side of therwater-chamber K is secured the short pipe N,which forms a continuation of the hollow piston-rod, and which serves toconnect the two water-chambers K M. The chamber M is longer than the oneK and has the packing o secured to its upper end in the chamber formedbetween the two chambers. The chamber M has also a packing p applied toits lower end, while the chamber K has none applied to it. In the lowerend of the chamber M is secured the valve-seat r, upon which issupported the valve O,which controls the opening S, through which waterpasses from the cylinder into the plunger on its downstroke.

The valve L in the upper chamber K serves to prevent the water fromescaping from the' IOO vided with valved openings in their outer ends, acontracted neck for uniting the 'cylinders, two hollow pistons providedwith valves at their outer ends, a hollow piston-rod divided intosections, a disk secured to the piston-rod, and a packing on the disk,for this is shown in my pending application iled December 28, 1895, andbearing serial number 57 8,647

Having thus described my invention, I claim- In a pump, a singlecylinder provided with a Valve at cach end, a hollow pistonrod, a pistonhaving a water-chamber at each end, and a valve in the outer end of eachchamber, and

of two witnesses.

DAVID LIPPY. Vvitnesses:

BYRON J. BALLIETT, H. W. MATEER.

